function startLoading() {
	 // Effect.Appear('mainAreaLoading');
	  Element.hide('mainAreaInternal');
	}
	function finishLoading() {
	  Element.show('mainAreaInternal');
	  //setTimeout("Effect.Fade('mainAreaLoading');", 1500);
	}

	function loadContent(id) {
	  startLoading();
	  new Ajax.Updater('mainAreaInternal', '../rpc.php', {method: 'post', postBody:'content='+ id +''});
	  finishLoading();
	}
	  
    function MM_preloadImages() {
      var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
      var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
      if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
    }